Denys Vlasenko schrieb:
On Friday 06 June 2008 15:01, Manu wrote:
Hi there,
I encountered a problem with udhcpd in combination with a ISP, that
drops every ping request!
I can only surf with IP not by name - the DNS doesn't work!
Tvcabo is a big cable isp in Portugal and ex-portugal colonies.
On a fixed I-net-IP tvcabo net, with ping allowed the name resolution
works fine.
On DSL with ping allowed, the name resolution works fine.
On NON-fixed-IP tvcabo net, with ping not allowed, the name resolution
doesn't work!!!
I can confiure 2 nameservers.
In the fix I-net-IP test I set in 'nameserver' = 196.46.0.236 ( tvcabo
dns WITH PING DROP )
and in 'Nameserver2' = 80.58.0.33 (telefonica dns WITHOUT PING DROP )
I receive by dhcp, the telefonica dns!! I dont understand it!?
Is there a possibility to configure udhcpd to not test the DNS servers!
Show your udhcpc command line and log; tcpdump trace and the like.
As of now, the description you gave lacks details needed to diagnose
the problem.
I don't use udhcpc as client. I have a small linux system with busybox
an the udhcpd from busybox running. This system acts like a router.
There are two Networkinterfaces LAN1=WAN; LAN2=LAN - and there are many
PC's, laptop with different operating systems connected via LAN2. The
small linux systems provides them IP-addresses with udhcpd. I going to
get a tcpdump trace! what do you mean with the like?
Is there a ping in the background to check if the DNS-Server is available?!
No, udhcpc does not do any tests by pinging.
--
vda
Thank you very much for the fast response!
what about the udhcpd - does the daemon do a ping on the nameserver?
regards,
manu
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